CN216373878U - Digital PCB character white ink jet printer supplies ink circulation system - Google Patents
Digital PCB character white ink jet printer supplies ink circulation system Download PDFInfo
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- CN216373878U CN216373878U CN202122925240.0U CN202122925240U CN216373878U CN 216373878 U CN216373878 U CN 216373878U CN 202122925240 U CN202122925240 U CN 202122925240U CN 216373878 U CN216373878 U CN 216373878U
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Abstract
The utility model discloses an ink supply circulating system of a digital PCB character white ink jet printer, and particularly relates to the technical field of ink supply of ink jet printers. The utility model adopts the twice ink path circulating system to fully stir the white ink, the precipitate can not be formed, the phenomenon that the white ink precipitate containing the inorganic pigment titanium dioxide blocks the spray head is avoided, the finished product production efficiency of the product is greatly improved, the service life of the spray head is prolonged by more than one time, and a large amount of maintenance and cleaning time is saved.
Description
Technical Field
The utility model relates to the technical field of ink supply of ink jet printers, in particular to an ink supply circulating system of a digital PCB character white ink jet printer.
Background
In the PCB manufacturing industry, the ink-jet printing of white ink characters is always an important part, because white ultraviolet light curing ink contains inorganic pigment titanium dioxide, the inorganic pigment is insoluble in organic solvent, precipitates are very easily formed when the ink is stood for a long time, especially in a high-temperature printing environment at about 50 ℃, the precipitates are more easily formed in a secondary ink box in an ink supply system without ink circulation to block a nozzle of a spray head, so that the ink-jet defects of incomplete pattern printing such as missing lines, broken lines and the like are caused in the ink-jet process, and then unqualified products are repaired or scrapped, and great waste is caused to manpower and material resources in the actual production process.
Therefore, the mechanism of the digital PCB character white ink supply circulating system is provided, the ink path circulating system is carried out twice, white ultraviolet light curing ink is sufficiently and circularly stirred, the problem that the ink is easy to form sediment to block a spray head can be perfectly solved, and the quality and the precision of a printed product are ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ink supply circulating system of a digital PCB character white ink jet printer, which aims to solve the problems that: the problem that sediment is formed in a secondary ink box in an ink supply system without ink circulation in the white ink character ink-jet printing in the PCB manufacturing process to block a nozzle of a nozzle is easier to form.
In order to achieve the above purpose, the utility model provides the following technical scheme: an ink supply circulating system of a digital PCB character white ink jet printer comprises a twice ink path circulating system, wherein the first ink path circulating system comprises a main ink tank, an ink tank sealing cover, a direct current stirring motor and an ink supply stirring rod, the ink tank sealing cover is fixedly arranged at the top of the main ink tank through bolts, the direct current stirring motor is fixedly arranged at the top end of the ink tank sealing cover, the output end of the direct current stirring motor penetrates through the ink tank sealing cover and is fixedly provided with the ink supply stirring rod, the ink supply stirring rod is arranged inside the main ink tank, the outer end of the ink supply stirring rod is fixedly provided with a plurality of fan blades, the ink tank sealing cover is fixedly provided with an ink inlet pipe interface and an ink return pipe interface, the ink inlet pipe interface is arranged on one side of the ink return pipe interface, the ink inlet pipe interface and the ink return pipe interface are both communicated with the inside of the main ink tank, the second ink path circulating system comprises a first-level ink box and a second-level ink box, and the physical installation position of the second-level ink box is 50mm higher than that of the second-level ink box, the ink inlet pipe interface is communicated with the first secondary ink box, the ink return pipe interface is communicated with the second secondary ink box, and the first secondary ink box is communicated with the second secondary ink box.
Preferably, the bottom of the main ink tank is circular, a circular heating sheet is fixedly arranged on the bottom surface of the main ink tank, and the rotating speed of the direct current stirring motor is 10 revolutions per minute.
Preferably, the ink filling port of the main ink tank is provided with an ink filling port cover in a threaded manner.
Preferably, an air filter valve is fixedly arranged on the ink tank sealing cover and communicated with the interior of the main ink tank, and the air filter valve is arranged on one side of the ink return pipe interface.
Preferably, two liquid level detectors are arranged in the main ink tank, the first secondary ink box and the second secondary ink box, and the two liquid level detectors on the main ink tank, the first secondary ink box and the second secondary ink box are respectively an upper liquid level sensor and a lower liquid level sensor.
Preferably, an ink pump, a bag filter and an ink path electromagnetic valve are sequentially connected to a pipeline between the ink inlet pipe interface and the first second ink box, an ink pump is connected to a pipeline between the ink return pipe interface and the second ink box, and two needle type ink path electromagnetic valves, an ink filter and nine nozzles are sequentially connected to pipelines of the first second ink box and the second ink box.
Preferably, the height difference between the first secondary ink box and the spray head is within 240 mm.
Preferably, the first secondary ink box and the second secondary ink box are communicated with an air pressure tank through a pipeline, an air path electromagnetic valve is fixedly arranged on the pipeline, the pressure in the air pressure tank is-0.1 Kpa, the air pressure tank is communicated with an air machine and a 20L air storage tank, the pipeline between the air pressure tank and the air storage tank is connected with the air path electromagnetic valve, the air storage tank is connected with an air pump, an ink path control plate, an air path electromagnetic valve and a butterfly-shaped air filter, and the pipeline between the air pressure tank and the air machine is connected with the air path electromagnetic valve and an ink pressing film pressure regulating valve.
In the technical scheme, the utility model provides the following technical effects and advantages:
1. the utility model adopts the twice ink path circulating system to fully stir the white ink, one circulation is that the main ink barrel is constantly stirred to prevent the white ink from precipitating in the ink barrel, the other circulation is that the ink circulates in the ink path pipeline to prevent the white ink from precipitating in the ink path pipeline, and meanwhile, the white ink is circulated by the spray head to prevent the white ink from precipitating in the spray head to block the spray head during the printing operation;
2. the utility model avoids the phenomenon that white ink containing inorganic pigment titanium dioxide precipitates to block the spray head, greatly improves the production efficiency of the finished product, prolongs the service life of the spray head by more than one time, and saves a large amount of time for maintenance and cleaning.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is an external view of the main ink tank of the present invention;
FIG. 3 is a view showing the internal structure of the main ink tank of the present invention;
FIG. 4 is a view showing the construction of an ink supply stirring rod according to the present invention;
FIG. 5 is a diagram of a second ink circulation system of the present invention.
Description of reference numerals:
1. a main ink tank; 2. an ink-filling port cover; 3. an ink tank sealing cover; 4. a direct current stirring motor; 5. an air filter valve; 6. an ink inlet pipe interface; 7. an ink return pipe interface; 8. a liquid level detector; 9. an ink supply stirring rod; 10. a first secondary ink box; 11. and a second ink box.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
The ink supply circulation system of the digital PCB character white ink jet printer shown in figures 1-5 comprises a twice ink path circulation system, and the twice ink path circulation system is adopted to fully stir white ink, so that precipitates cannot be formed.
As shown in fig. 1-4, the ink supply circulation system of the digital PCB character white ink jet printer comprises a main ink tank 1, an ink tank sealing cover 3, a direct current stirring motor 4 and an ink supply stirring rod 9, wherein the bottom of the main ink tank 1 is circular, a circular heating plate is fixedly arranged on the bottom surface of the main ink tank 1 and used for heating ink to about 35 ℃, so as to effectively reduce the viscosity of UV ink and increase the smoothness of ink supply, an ink injection port cover 2 is arranged on an ink injection port of the main ink tank 1 in a threaded manner and used for injecting ink into the main ink tank 1, two liquid level detectors 8 are respectively arranged inside the main ink tank 1, the two liquid level detectors 8 are respectively an upper liquid level sensor and a lower liquid level sensor and used for detecting liquid levels, the ink tank sealing cover 3 is fixedly arranged at the top of the main ink tank 1 through bolts, an air filter valve 5 is fixedly arranged on the ink tank 3, air filter valve 5 and the inside intercommunication of main china ink jar 1 for discharge unnecessary air, air filter valve 5 is established in ink return pipe interface 7 one side, direct current agitator motor 4 is fixed to be established on the sealed 3 tops of china ink jar, direct current agitator motor 4's rotational speed is 10 rotations per minute, direct current agitator motor 4's output runs through the sealed 3 fixed ink jar that are equipped with of 3 and supplies ink puddler 9, it establishes inside main china ink jar 1 to supply ink puddler 9, it is equipped with a plurality of flabellums to supply ink puddler 9 outer end is fixed, the sealed 3 upward fixed china ink pipe interface 6 and the ink return pipe interface 7 of being equipped with of china ink jar, it establishes in ink return pipe interface 7 one side to advance china ink pipe interface 6, it all communicates with main china ink jar 1 inside with to advance china ink pipe interface 6 and ink return pipe interface 7.
The implementation mode is specifically as follows: the first ink path circulating system has the following specific movement process: the first ink path circulating system is carried out in a main ink tank 1, an ink filling opening cover 2 is unscrewed, ink is slowly filled into the main ink tank 1 from the ink filling opening, a liquid level detector 8 only needs to display that the liquid level exceeds the lowest liquid level, redundant air is discharged into the outside atmosphere through an air filter valve 5, a direct current stirring motor 4 which runs at a low speed is arranged on an ink tank sealing cover 3, the direct current stirring motor 4 drives an ink supply stirring rod 9 to rotate all the time at a speed of 10 revolutions per minute in a clockwise direction, so that the ink cannot be precipitated, meanwhile, the heating sheet on the main ink tank 1 ensures that the ink is heated to about 35 ℃, the viscosity of the UV ink is effectively reduced, the ink supply fluency of the ink is increased, and the fan blades on the ink supply stirring rod 9 can realize stirring without dead angles under the driving of the direct current stirring motor 4, so that inorganic pigment titanium dioxide is prevented from precipitating in the corners of the main ink tank 1.
As shown in fig. 1 and 5, the ink supply circulation system of the digital PCB character white ink jet printer comprises a first secondary ink cartridge 10 and a second secondary ink cartridge 11, wherein the first secondary ink cartridge 10 is 50mm higher than the second secondary ink cartridge 11 in physical installation position, ink in the first secondary ink cartridge 10 flows into the second secondary ink cartridge 11 through a nozzle under the action of a liquid siphon principle, the ink inlet pipe interface 6 is communicated with the first secondary ink cartridge 10, the ink return pipe interface 7 is communicated with the second secondary ink cartridge 11, the first secondary ink cartridge 10 is communicated with the second secondary ink cartridge 11, two liquid level detectors 8 are respectively arranged inside the first secondary ink cartridge 10 and the second secondary ink cartridge 11, the two liquid level detectors 8 on the first secondary ink cartridge 10 and the second secondary ink cartridge 11 are respectively an upper liquid level sensor and a lower liquid level sensor, and an ink pump is sequentially connected to a pipeline between the ink inlet pipe interface 6 and the first secondary ink cartridge 10, A bag filter and an ink path electromagnetic valve, an ink pump is connected on the pipeline between the ink return pipe interface 7 and the second-level ink box 11, the pipelines of the first two-stage ink box 10 and the second two-stage ink box 11 are sequentially connected with two needle type ink path electromagnetic valves, an ink filter and nine nozzles, the height difference between the first secondary ink box 10 and the spray head is within 240mm, the first secondary ink box 10 and the second secondary ink box 11 are communicated with an air pressure tank through a pipeline, an air channel electromagnetic valve is fixedly arranged on the pipeline, the pressure in the air pressure tank is-0.1 Kpa, the air pressure tank is communicated with an air machine and a 20L air storage tank, a pipeline between the air pressure tank and the air storage tank is connected with an air path electromagnetic valve, and the air storage tank is connected with an air pump, an ink path control plate, an air path electromagnetic valve and a butterfly-shaped air filter, and a pipeline between the air pressure tank and the air machine is connected with an air path electromagnetic valve and an ink pressing film pressure regulating valve.
The implementation mode is specifically as follows: the second ink path circulating system has the following specific movement process: after particles and impurities larger than 3nm are filtered by ink stirred in the main ink tank 1 through a bag filter F1 by an ink pump M1, the ink is injected into a first secondary ink box 10 to reach a set liquid level, an ink path control plate P2 signal is given, at the moment, the ink pump M1 is powered off to stop supplying ink, the physical installation position of the first secondary ink box 10 is 50mm higher than that of a second secondary ink box 11, the ink in the first secondary ink box 10 flows into the second secondary ink box 11 through a nozzle under the action of a liquid siphon principle, the liquid level difference of 50mm is always kept, the pressure in an air pressure tank is-0.1 Kpa at the moment, an air path electromagnetic valve Z2 opens the first secondary ink box 10 and the second secondary ink box 11 to keep the same negative pressure, and the ink cannot flow out of the nozzle under the action of the negative pressure;
the height difference between the first secondary ink box 10 and the spray head is within 240mm, and the air storage tank with the stable 20L air storage capacity is arranged, so that the stability of a negative pressure ink meniscus of the spray head can be effectively guaranteed, and the UV ink can be guaranteed not to be leaked out of the spray head within 5-10 hours if extreme conditions such as power failure or air failure occur, which is indispensable for safety protection measures of spray head equipment;
the ink can automatically flow into the second-level ink box 11 from the first second-level ink box 10 through two inlets and outlets of the spray head according to the siphon principle under the action of the liquid level height difference, if the spray head has a printing task, the ink of the first second-level ink box 10 can be directly printed through the spray head, and redundant ink can flow into the second-level ink box 11, so that the ink discharging of the printed ink is sufficient and smooth; if the nozzle does not have a printing task, the needle-shaped ink path electromagnetic valves Z3 and Z4 are closed, the ink circularly flows and does not pass through the nozzle, the ink directly reaches the second-stage ink box 11 through the needle-shaped ink path electromagnetic valves Z3 and Z4, and the ink return pipe orifice 7 is closed at the moment;
after the liquid level detector 8 of the second ink box 11 with the liquid level difference less than 50mm reaches a set value, the ink pump M1 pumps the redundant ink back into the main ink tank 1, if the liquid level of the first second ink box 10 is lower than the set value, the ink pump M1 pumps the stirred ink in the main ink tank 1 into the first second ink box 10 again, so that the circulating flow of the ink is realized, and the white ink cannot be deposited on the pipe wall of the main ink tank 1 to cause ink path blockage through the circulating flow of the ink.
The utility model avoids the phenomenon that white ink containing inorganic pigment titanium dioxide precipitates to block the spray head, greatly improves the production efficiency of the finished product, prolongs the service life of the spray head by more than one time, and saves a large amount of time for maintenance and cleaning.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.
Claims (8)
1. The utility model provides a digital PCB character white ink jet printer supplies black circulation system which characterized in that: including twice ink circuit circulation system, first time ink circuit circulation system includes main ink tank (1), ink tank sealing lid (3), direct current agitator motor (4) and supplies black puddler (9), ink tank sealing lid (3) are established at main ink tank (1) top through the bolt fastening, direct current agitator motor (4) are fixed to be established on ink tank sealing lid (3) top, the output of direct current agitator motor (4) is run through ink tank sealing lid (3) and is fixed to be equipped with and supplies black puddler (9), it establishes inside main ink tank (1) to supply black puddler (9), it is fixed to be equipped with a plurality of flabellums to supply black puddler (9) outer end, fixed ink inlet pipe interface (6) and ink return pipe interface (7) of being equipped with on ink tank sealing lid (3), ink inlet pipe interface (6) are established in ink return pipe interface (7) one side, ink inlet pipe interface (6) and ink return pipe interface (7) all communicate with main ink tank (1) inside, the second ink path circulating system comprises a first secondary ink box (10) and a second secondary ink box (11), the physical installation position of the first secondary ink box (10) is 50mm higher than that of the second secondary ink box (11), the ink inlet pipe interface (6) is communicated with the first secondary ink box (10), the ink return pipe interface (7) is communicated with the second secondary ink box (11), and the first secondary ink box (10) is communicated with the second secondary ink box (11).
2. The digital PCB character white ink jet printer ink supply circulation system of claim 1, wherein: the bottom of the main ink tank (1) is circular, a circular heating sheet is fixedly arranged on the bottom surface of the main ink tank (1), and the rotating speed of the direct current stirring motor (4) is 10 revolutions per minute.
3. The digital PCB character white ink jet printer ink supply circulation system of claim 1, wherein: an ink filling port cover (2) is arranged on an ink filling port of the main ink tank (1) in a threaded manner.
4. The digital PCB character white ink jet printer ink supply circulation system of claim 1, wherein: the ink tank sealing cover (3) is fixedly provided with an air filtering valve (5), the air filtering valve (5) is communicated with the interior of the main ink tank (1), and the air filtering valve (5) is arranged on one side of the ink return pipe connector (7).
5. The digital PCB character white ink jet printer ink supply circulation system of claim 4, wherein: the ink level detection device is characterized in that two liquid level detectors (8) are arranged inside the main ink tank (1), the first secondary ink box (10) and the second secondary ink box (11), and the two liquid level detectors (8) on the main ink tank (1), the first secondary ink box (10) and the second secondary ink box (11) are respectively an upper liquid level sensor and a lower liquid level sensor.
6. The digital PCB character white ink jet printer ink supply circulation system of claim 1, wherein: an ink pump, a bag type filter and an ink path electromagnetic valve are sequentially connected to a pipeline between the ink inlet pipe connector (6) and the first secondary ink box (10), an ink pump is connected to a pipeline between the ink return pipe connector (7) and the second secondary ink box (11), and two needle type ink path electromagnetic valves, an ink filter and nine nozzles are sequentially connected to pipelines of the first secondary ink box (10) and the second secondary ink box (11).
7. The digital PCB character white ink jet printer ink supply circulation system of claim 6, wherein: the height difference between the first secondary ink box (10) and the spray head is within 240 mm.
8. The digital PCB character white ink jet printer ink supply circulation system of claim 1, wherein: the air pressure control device is characterized in that the first secondary ink box (10) and the second secondary ink box (11) are jointly communicated with an air pressure tank through a pipeline, an air path electromagnetic valve is fixedly arranged on the pipeline, the pressure in the air pressure tank is-0.1 Kpa, the air pressure tank is communicated with an air machine and a 20L air storage tank, the pipeline between the air pressure tank and the air storage tank is connected with the air path electromagnetic valve, the air storage tank is connected with an air pump, an ink path control plate, an air path electromagnetic valve and a butterfly-shaped air filter, and the pipeline between the air pressure tank and the air machine is connected with the air path electromagnetic valve and an ink pressing film pressure regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122925240.0U CN216373878U (en) | 2021-11-25 | 2021-11-25 | Digital PCB character white ink jet printer supplies ink circulation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122925240.0U CN216373878U (en) | 2021-11-25 | 2021-11-25 | Digital PCB character white ink jet printer supplies ink circulation system |
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| Publication Number | Publication Date |
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| CN216373878U true CN216373878U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122925240.0U Active CN216373878U (en) | 2021-11-25 | 2021-11-25 | Digital PCB character white ink jet printer supplies ink circulation system |
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| CN (1) | CN216373878U (en) |
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- 2021-11-25 CN CN202122925240.0U patent/CN216373878U/en active Active
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